$349+ Cheap flights from Bismarck to St. Louis (BIS - STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
BIS — STL
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Bismarck to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Bismarck to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Bismarck to St. LouisExplore the most affordable flight options available from Bismarck to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Bismarck to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This American Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:57 pm -
1 stop5h 10m
Wed 9/237:21 am -
1 stop5h 15m
Deal found 9/4![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:57 pm -
1 stop5h 10m
Tue 9/153:34 pm -
1 stop7h 18m
Deal found 9/6![American Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:30 pm -
1 stop7h 08m
Tue 9/154:40 pm -
1 stop6h 58m
Deal found 9/6![United Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:55 pm -
2 stops10h 19m
Tue 9/153:34 pm -
1 stop7h 18m
Deal found 9/6![American Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:13 pm -
1 stop7h 31m
Sun 10/45:00 am -
1 stop7h 36m
Deal found 9/5![American Airlines logo]()
$507
This American Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:22 pm -
1 stop6h 28m
Mon 11/305:00 am -
1 stop7h 49m
Deal found 9/4![American Airlines logo]()
$511
Best flights from Bismarck to St. LouisDiscover carefully curated flight deals from Bismarck to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Bismarck to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:57 pm -
2 stops10h 30m
Sun 10/47:00 am -
1 stop6h 27m
Deal found 9/5![American Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/91:08 pm -
1 stop7h 51m
Tue 1/123:00 pm -
1 stop5h 10m
Deal found 9/3![United Airlines logo]()
$557
Last-minute flights from Bismarck to St. LouisDiscover last-minute flight deals from Bismarck to St. Louis. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Bismarck to St. Louis. Data last updated September 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:30 pm -
1 stop7h 08m
Tue 9/154:40 pm -
1 stop6h 58m
Deal found 9/6![United Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:55 pm -
2 stops10h 19m
Tue 9/153:34 pm -
1 stop7h 18m
Deal found 9/6![American Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:57 pm -
1 stop5h 10m
Tue 9/153:34 pm -
1 stop7h 18m
Deal found 9/6![American Airlines logo]()
$424
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:57 pm -
2 stops10h 30m
Fri 9/185:00 am -
1 stop7h 36m
Deal found 9/7![American Airlines logo]()
$572
This American Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:57 pm -
1 stop5h 10m
Wed 9/237:21 am -
1 stop5h 15m
Deal found 9/4![American Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:13 pm -
1 stop7h 31m
Sun 10/45:00 am -
1 stop7h 36m
Deal found 9/5![American Airlines logo]()
$507
One-way flights from Bismarck to St. LouisSearch for one-way flight options from Bismarck to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Bismarck to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:13 pm -
1 stop7h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![American Airlines logo]()
$424
Find flight deals from Bismarck to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Bismarck (BIS) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (American Airlines) |
Popular in | November |
Cheapest in | February |
Average price | $382 |
Cheapflights Fare Finder
Customize your flight search to find flights from Bismarck to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Bismarck to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BismarckSt. Louis
BIS Bismarck - STL Lambert-St Louis
BISSTL
Bismarck
Mon 9/14
1:13 pm-8:44 pm
1 stop7h 31m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$424
BismarckSt. Louis
BIS Bismarck - STL Lambert-St Louis
BISSTL
Bismarck
Fri 10/2
1:57 pm-12:27 am
2 stops10h 30m
Lambert-St Louis
Sun 10/4
7:00 am-1:27 pm
1 stop6h 27m
$512
BismarckSt. Louis
BIS Bismarck - STL Lambert-St Louis
BISSTL
Bismarck
Sat 1/9
1:08 pm-8:59 pm
1 stop7h 51m
Lambert-St Louis
Tue 1/12
3:00 pm-8:10 pm
1 stop5h 10m
$557
Sorted by cheapest first
Compare providers for flights from Bismarck to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bismarck to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Bismarck-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bismarck-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bismarck-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Bismarck-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bismarck-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Bismarck to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Bismarck with our price prediction graph.
BIS-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 8, 2026.
Read reviews from past customers who have flown Delta from Bismarck to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Entertainment
7.8
Boarding
8.1
Overall
7.8
Crew
8.5
Comfort
7.8
Food
7.2
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Related info for your journey
Find useful and relevant information for your journey from Bismarck to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
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Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
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Bismarck and St. Louis flights
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Top airline flying from Bismarck to St. Louis
Discover the top airline that operate flights from Bismarck to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$269 | Average$438 | FlexibilityNo cancel fee | On-timeN/A |